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In order for a roller coaster to work, why does the hill the cart climbs need to be higher than the top of the loop?
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What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.
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At what time will the interfering waves have an amplitudeof zero?
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1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?
Answers: 3
In order for a roller coaster to work, why does the hill the cart climbs need to be higher than the...
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